Inbreeding, Line Bbeeding and Cross Breeding. 



75 



the pedigree, as illustrated in this chapter where a saraple 

 pedigree of a closely inbred animal is shown and also 

 another pedigree of a strongly line-bred animal. 



Cross breeding, strictly speaking, is understood to mean 

 the mating of two animals that are of pure breeding but 

 of different breeds, as crossing a Berkshire boar on a 

 Poland-China sow, or any other of the pure breeds bred to- 

 gether. Cross-breeding from the feeders' and farmers' 

 standpoint produces in the first cross a very superior feed- 

 ing animal, often the produce being better for pork 

 purpose? than the pure-bred but it must stop at the first 

 cross ; by further crossing, the animals deteriorate and the 

 result is the reversion to the scrub. It is not generally 

 customary to do any cross breeding except for experiments 

 or special results in the first cross. 



SPECIMEN PEDIGREE OF A LINE BRED ANIMAL. 

 CLIMAX BARON 112983. 



Farrowed September 26th, 1907. 



r 



Masterpiece Climax . 

 100001 ■. 



Matchless Baroness 

 103002 



Masterpiece 77000. 



Lustre Lady 2d 

 66416 



Masterpiece 77000.. 



Baron's Belle 4th 

 88138 



Black Robinhood 



66086 

 Duchess 221st 56257 



Imp. Lustre's Bachelor 



52262 

 Columbus Girl 2d 



47068 



Black Robinhood 



66086 

 Duchess- 221st 56257 



Baron Lee of River- 

 side 70400 



Carlinville Belle 5th 

 63863 



You will notice that Climax Baron 112983 is a Une-treA animal; 

 that his sire Masterpiece Climax, is a son of Masterpiece, and his 

 dam, Matchless Baroness, is a daughter of Masterpiece. But Master- 

 piece Climax, the sire of Climax Baron, was out of a sow sired by an 

 imported boar, giving an outcross that proved especially desirable in 

 our herd. 



